预制钢筋砼桩达到设计强度的（）时，方可运输。 A.50% B.70% C.90% D_爱下问搜题

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问题单项选择题

预制钢筋砼桩达到设计强度的（）时，方可运输。

A.50%

B.70%

C.90%

D.100%

答案

参考答案：D

选择题

The whole building _____ burned down, but the heavy rain _____.

A．might have; would help	B．could have been; helped	C．must have; helped
D．should have been; was helping

单项选择题

男，根据其正常手的影像图像，判断其最可能的年龄()

A．16岁左右

B．26岁左右

C．36岁左右

D．76岁左右

E．56岁左右